Administrators Authenticating to Another Microsoft Entra ID Tenant

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Detects when a privileged user account successfully authenticates from to another Microsoft Entra ID Tenant. Authentication attempts should be investigated to ensure the activity was legitimate and if there is other similar activity. Ref: https://docs.microsoft.com/azure/active-directory/fundamentals/security-operations-user-accounts#monitoring-for-successful-unusual-sign-ins

Attribute Value
Type Hunting Query
Solution GitHub Only
ID 3a0447c1-7f43-43d0-aeac-d5e1247964a8
Tactics InitialAccess
Techniques T1078.004
Required Connectors AzureActiveDirectory, BehaviorAnalytics
Source [View on GitHub](https://github.com/Azure/Azure-Sentinel/blob/master/Hunting Queries/SigninLogs/AdministratorsAuthenticatingtoAnotherAzureADTenant.yaml)

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